A closed-form spatial Green's function for the thick microstrip substrate
A closed-form spatial Green's function for the thick microstrip substrate
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DOI：
10.1109/22.75309
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发表时间：
1991-03
影响因子：
4.3
通讯作者：
Y. Chow;J. J. Yang-J.;D. Fang;G. Howard
中科院分区：
文献类型：
--
作者：
Y. Chow;J. J. Yang-J.;D. Fang;G. Howard
开放式微带结构的空间绿色函数，特别是厚基板，通常表示在耗时的索末菲积分。通过索末菲恒等式，从准动态图像、复图像和表面波中得到了一个封闭形式的少项空间绿色函数。由于这样避免了索末菲积分的数值积分，这种封闭形式的绿色函数在计算上非常有效。数值算例表明，封闭形式的绿色函数给出小于1%的误差为所有基板和源场距离。>
The spatial Green's function for the open microstrip structure, especially with a thick substrate, is generally represented in the time-consuming Sommerfield integrals. Through the Sommerfield identity, a closed-form spatial Green's function of a few terms is found from the quasi-dynamic images, the complex images, and the surface waves. With the numerical integration of the Sommerfeld integrals thus avoided, this closed-form Green's function is computationally very efficient. Numerical examples show that the closed-form Green's function gives less than 1% error for all substrates and source-to-field distances. >